An object of the present invention is to provide an efficient method for determining the blending amount of ashless coal in the production of blast furnace coke and a method for producing blast furnace coke using the same. The present invention relates to a method for determining the amount of ashless coal during the production of an ashless coal obtained by solvent extraction treatment of coal and a coke for a blast furnace containing raw coal, wherein the porosity index Pv [vol%] of the raw coal, the swelling index D The amount of the ashless coal in the compounded coal is determined by the reference value W [mass%] calculated by the following equation (1) using the [vol%] and the true specific gravity of the ashless coal. The blending amount of the above-mentioned ashless coal to the compounded carbon is preferably 0.29 W [mass%] or more and 1.00 W [mass%] or less. EMI ID = 1.0
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机译：本发明的目的是提供一种用于确定高炉焦炭生产中的无灰煤的掺混量的有效方法以及使用该方法来生产高炉焦炭的方法。用于煤的溶剂萃取处理获得的无灰煤的生产过程中的无灰煤的含量确定方法技术领域本发明涉及一种通过煤的溶剂萃取处理获得的无灰煤和含原煤的高炉焦炭的生产中无灰煤的含量确定方法，其中，原煤，溶胀指数D混合煤中无灰煤的量由参考值W [质量％]通过以下公式（1）使用[vol％]和无灰的真实比重计算得出煤炭。上述无灰煤相对于复合碳的配合量优选为0.29W [质量％]以上且1.00W [质量％]以下。EMI ID = 1.0>
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